Not sure it makes sense to sign him for 30-40 million (including penalties).
I know the Reds are limited in the future signing of international players. I know they are capped in draft spending.. So I see the logic of going big.
However, if you assume there is 40 million in the bank to spend on adding talent, it might make sense to spend it elsewhere (like locking up current young players).
This kid would have to play pretty well to justify that amount of bonus. If I understand the rules correctly, he is too young to be given a MLB contract like Chapman was. (Please correct me if I am wrong).. So 40 million means he basically costs an about an extra 7 million per year during his six years of control. That is pretty steep for a prospect, even one that can not miss supposedly. The whole point of hording young talent is that it is more cost effective.
Now if it is 40 million for his entire first six years (kind of like Chapman), then that is different, but still a pretty big financial risk